The radio show has just started, starring Toyama Nao (Yune) and Yuuki Aoi (Alice). They are both the same age (19) but this is Toyama-san's first radio show. Ao-chan is also currently in a show with Hayami Saori (just turned 20) on A&G+.
Here is the
radio show's homepage, from which you can hear the show. And here is a photo of the two at the show (Toyama and Yuuki):